Year	constant 2011 PPP $
1991	29092.2578125
1992	30718.0390625
1993	30491.396484375
1994	30543.67578125
1995	30069.984375
1996	30518.412109375
1997	31245.5859375
1998	32927.75390625
1999	31626.078125
2000	30315.1796875
2001	29275.638671875
2002	29317.001953125
2003	30364.296875
2004	31065.828125
2005	29213.158203125
2006	29122.17578125
2007	27971.521484375
2008	28410.443359375
2009	29077.6953125
2010	28745.779296875
2011	28937.22265625
2012	28569.591796875
2013	30245.19140625
2014	30113.3359375
2015	30610.369140625
2016	29650.298828125
2017	29893.0234375
2018	30032.4296875
2019	30421.083984375